20158160

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{22907}}^1$

素因数の和:22931

約数の個数: 40

約数和(自身を含む): 51130656

約数和(自身を除く): 30972496

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 22907, 45814, 91628, 114535, 183256, 229070, 251977, 366512, 458140, 503954, 916280, 1007908, 1259885, 1832560, 2015816, 2519770, 4031632, 5039540, 10079080, 20158160]

約数ペア:

[(1, 20158160), (2, 10079080), (4, 5039540), (5, 4031632), (8, 2519770), (10, 2015816), (11, 1832560), (16, 1259885), (20, 1007908), (22, 916280), (40, 503954), (44, 458140), (55, 366512), (80, 251977), (88, 229070), (110, 183256), (176, 114535), (220, 91628), (440, 45814), (880, 22907)]